206404442 has 8 divisors (see below), whose sum is σ = 309924576. Its totient is φ = 103096252.

The previous prime is 206404441. The next prime is 206404447. The reversal of 206404442 is 244404602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (206404441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50528 + ... + 54459.

It is an arithmetic number, because the mean of its divisors is an integer number (38740572).

Almost surely, 2^206404442 is an apocalyptic number.

206404442 is a deficient number, since it is larger than the sum of its proper divisors (103520134).

206404442 is a wasteful number, since it uses less digits than its factorization.

206404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105972.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 206404442 is about 14366.7825904062. The cubic root of 206404442 is about 590.9803122345.

The spelling of 206404442 in words is "two hundred six million, four hundred four thousand, four hundred forty-two".